Computing-machine.



PATBNTED AUG; 11, 1908.

110195373. I R. R1. LANE.

GOMBUTING MAGHINB.

APPLICATION 21mm P131907;

moo sis V'IIVAY- .Lssa

ROBERT E. LANE, OF DETROIT, MICHIGAN.

COMPUTING-MACHINE To all whom it may concern:

Be it known that I, ROBERT R. LANE, a

citizen of the United States, residing at 180-- trolt, count ol' Wayne, btate of Michigan, have invented a certain new and useful Inn provement 1n Computmgdviaclunes, and declare the following to be a full, clear, and e;

act description of the same, such as will enable others skilled in the art to which it per tains to make and use the same, reference being had to the accompanying drawings,

the individual numbers to be added are printed in columns on a strip of paper pres paratory to imprinting on the same strip of paper the total of all the individual numbers.

The attachment consists of a holder for a piece of guard. paper that covers that part of the platen upon which some of the figures wou d be imprinted, and thereby prevents one or more of the columns from being printed, leaving other spaces open or uncov ered, in which may be im rinted an figures that may be desired, as or exainpe in the drawings, which are attached hereto, there appears on the platen under the guard, thefigure 13 in one place, and 417 opposite on the same line, put in other columns and between the two, is a space sufiicient to be occupied by two colunins, which on the paper would be left blank, the imprint from the type being received on the guard, (the imprint which would appear on the guard is not shown in the drawing). This might mean that document number 13, as a note, for instance, represents $447, and document number 14 represents $5.23, or clerk, number 13 made a sale of $4.17, or any other trans action inwhich two indicating numbers are desired, and ofwhich a record is to be made.

In the drawings :Figure l, is a front view of the platen of a printing calculating machine, with the attachment in place before the platen. Fig. 2, shows a rear elevation. of

the attachment, detached from the platen.

Fig. 3, is a section through the platen and through the attachment. Fig. 3, is taken on the section a:-w of Fig. 2. Fig. 4, is a sec--. tion through the line ;-y of Fig. 2.

The attachment consists of a late 1 sup,

ported on standards 2 -and 3, w ich are arranged to be inserted in holes 4. and 5 in a bar of'the machine, just in front of the platen.

Specification of Letters Patent.

,ture is o Patented Aug. 11, 190%.

Application filed September 3, 1907. Serial No. 391,034.

The plate 1 is secured to the standards 2 and 3 and remains fixed in position with respect to the frame. it is provided with two inclined slits 6 and 7 through which engage the necks of buttons 8 and 9, fixed to the rear face of a plate 10 that reciprocates along the inclined slots, both rising and moving sidewise. The reciprocating plate 10 is provided i with fastening means for the engagement therewith of a shield 11 of pa er or any suit able material. An a prove means of engaging the paper shiel to the plate 10 is prouced'by cutting a slot 12 parallel with the edge of the late 10, and near the upper edge thereof. T e uard 11, preferably of stiff paper, is out oii a suitable width to engage closely between the and thrust through the slot 12, which is considerahiy longer'thau the widthof the paper shield. Apertures are cut in the aper shield to uncover those portions of'the p aten where it is desired to make imprints on the paper an which it 18 desired to leave withoutprint. On the a ertures 13 in 2 provision is made at t e bottom of the aperture by cutting the aperture to a greater width fonprinh in an extra figure to the left when the guard is ifted for the purpose oi printing. such astray figure: In normal use when it is not slfi lllfii to make rints in the portion where the spot:

paper tothe right, but lifts it, its motion to the right, being prevented by the hut-tons 8 and 9. The imprint is now made with the paper in its lifted osition, and "the print is made, not only in t e first three columns, but in the fourth column as ately upon releasing the left handend. oithe plate 16, the spring 14 retracts the plate-and.

the paper guard is pulled-downward to its first or normal position. What I claim is:'-

1. An attachment for computing mew chines, having in combination a platen, a

nerd orovided with a ertures and. means h .t p 3 necks of the buttons 8 and 9. The upper edge of the paper is bent eater width, the plate 10 is left its norms. and lower-most position. Should Wfllhlligbt. spacehitherto covered by the guardl' plmmedt.

correlating the same whereby limited relative being capable of motion with respect thereto platen is permitted, substantially its depiece adapted to be sup orted; by end to scribed. move with said moving p ate and means for 2 In an attachment for computing ma- 1 yieldingly opposing the movement of said chines,'in combination with a platen, it guard i moving plate from its normal position of Test adapted to be held in protecting position with respect to the iiied plate 'thei'eovel', a plate whereby the guard may be In testimony whereof, I sign this specificasunoorted, and means for lifting and depresstion in the presence of two Witnesses.

ing the guard, substantially as eseribed. ROBERT It. LANE.

An attachment for computing ineehines, having in combination a fixed plate,

a moving plate adopted to e pect therewith,

I movement of the guard with respect to the i only Within. fixed limits, on epeitured guard 

